First assessment of interchange of humpback whales between Oceania and the East coast of Australia
Main Article Content
The interchange of individual humpback whales between the wintering grounds of Oceania (South Pacific) and the east coast of Australia were
documented by individual identification photographs collected from 1999 to 2004. Interchange was assessed using regional catalogues of fluke
photographs, totalling 672 individuals from Oceania (represented by New Zealand, New Caledonia, Vanuatu, Fiji, Samoa, Tonga, Niue, Cook Island,
French Polynesia and American Samoa) and 1,242 individuals from Hervey Bay and Byron Bay representing the southbound and the northbound
migration along the east coast of Australia (EA). Overall, there were seven documented movements between EA and Oceania. Four instances of
movement of four individuals were documented between EA and the closest breeding grounds of New Caledonia. A further three movements were
recorded between EA and a small catalogue (n = 13) from the New Zealand migratory corridor. In contrast, during this same period, 20 cases of
interchange were documented among nine breeding grounds: French Polynesia, Cook Islands, Niue, American Samoa, Samoa, Tonga, Fiji, Vanuatu
and New Caledonia. The low level of interchange between Oceania and the east coast of Australia has important implications for understanding the
stock structure and abundance of humpback whales in the South Pacific.
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
You are free to:
- Share copy and redistribute the material in any medium or format
- Adapt remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
- Attribution You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial You may not use the material for commercial purposes.
- No additional restrictions You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.